The father of a mass shooting victim and two gun safety groups petitioned the federal government on Sunday to stop the firearms manufacturer Smith Wesson from using what they described as “deceptive and unfair” marketing to promote assault-style rifles.The father, Fred Guttenberg, whose 14-year-old daughter, Jaime, died in the Marjory Stoneman Douglas High School massacre in Parkland, Fla., joined with the advocacy groups Brady and Everytown for Gun Safety to send a complaint to the Federal…See More